Using a modified lag task to measure adult age differences in working memory

Four groups of adults, ages 40 to 70+ years, took the Modified Lag Task which requires that participants remember lists of words and subsequently recall the first, second, or third word from the end of the list. Previously, the task showed convergent validity with the operation span (a complex span measure) and a divergent validity with the digit span (a simple span measure). To establish predictive validity, the present study was designed to assess if this task could separate four age groups in working memory performance. The present study found support for the validity of the Modified Lag Task; however, additional research is warranted to further develop the construct validity of this task.     

Developing an Acculturation and Resilience Scale for Use with Culturally and Linguistically Diverse Populations

Australian multicultural society consists of culturally and linguistically diverse (CALD) migrants, refugees, and international students from different parts of the world. Despite hardships, these individuals show resilience and adapt successfully. However, there is a dearth of scales measuring these positive developments and personal strengths. The study describes the development and evaluation of a scale measuring resilience and acculturation of CALD people. Items were generated for the Acculturation and Resilience Scale (AARS). The AARS and other acculturation and psychological distress scales were administered to 225 CALD community members. Exploratory factor analyses resulted in a 27‐item AARS with three subscales: Acculturation, Resilience, and Spirituality. The three‐factor structure was subjected to a confirmatory factor analysis on a sample of 515 international students. The factor structure stability was upheld by the second sample. The psychometric properties were investigated using the two samples and demonstrated satisfactory internal consistency, test–retest reliability, and divergent validity. The scale addresses a major gap in the literature and can be used to measure the positive acculturation and resilience of the newly arrived and relocated individuals. Further research is warranted to examine the scale's psychometric properties with migrants and refugees from a range of ethnic communities.     

Role Definition as a Moderator of the Relationship Between Safety Climate and Organizational Citizenship Behavior Among Hospital Nurses

Purpose

This field study investigated the moderating influence of role definitions on the association between safety climate and employees’ organizational citizenship behavior (OCB).

Design/Methodology

Data were obtained from 94 hospital nurse dyads. Focal nurses and their peers completed paper surveys. All predictor measures were self-reported; whereas the OCB ratings were provided by nurses’ peers.

Findings

Nurses’ perceptions of job requirements regarding OCB (i.e., OCB-specific role definitions) moderated the relationship between psychological safety climate and peer-rated OCB. The correlation between psychological safety climate and OCB was significant when nurses’ role definitions were narrow but non-existent when role definitions were broad.

Implications

This study links managerial commitment to safety to nurses’ pro-social behavior and identifies an important boundary condition.

Originality-Value

The link between safety climate and safety compliance has been firmly established. We investigated a less well-researched association between safety and OCB and proposed a theoretical foundation for this positive association.     

The more you ignore me the closer I get: An ERP study of evaluative priming

We used event-related brain potentials (ERPs) to investigate the various mental processes contributing to evaluative priming—that is, more positive judgments for targets preceded by affectively positive, as opposed to negative, prime stimuli. To ensure ecological validity, we employed a priori meaningful landscape pictures as targets and emotional adjectives as visual primes and presented both primes and targets for relatively long durations (>1 s). Prime-related lateralized readiness potentials (LRPs) revealed response priming as one source of the significant evaluative priming effect. On the other hand, greater right-frontal positive slow wave in the ERP for pictures following negative, as compared with positive, primes indicated altered impression formation, thus supporting automatic spreading activation and/or affect misattribution accounts. Moreover, target LRPs suggested conscious counter-control to reduce the evaluative priming net effect. Finally, when comparing prime ERPs for two groups of participants showing strong versus weak evaluative priming, we found strong evidence for the role of depth of prime processing: In the weak-effect group, prime words evoked an increased visual P1/N1 complex, a larger posterior P2 component, and a greater left-parietal processing negativity presumably reflecting semantic processing. By contrast, a larger medial-frontal P2/N2 complex in the strong-effect group suggested top-down inhibition of the prime’s emotional content. Thus, trying to ignore the primes can actually increase, rather than decrease, the evaluative priming effect.     

Externalizing behavior challenges within primary care settings

Primary care providers encounter a substantial number of behavioral health concerns leading to the increasing provision of psychological interventions within medical settings. Externalizing disorders present a particular challenge to physicians and stand to benefit a great deal from early intervention. Providing behavioral health services in primary care can reduce barriers to treatment, stigma associated with mental health, and cost of service provision. Given these advantages, scholars have examined the provision of behavioral health interventions within primary care settings. This review provides a critical overview of the extant evidence base and offers suggestions for future efforts in this area.     

Age Differences in the Distractor-Ratio Effect as a Function of Contrast Level

ABSTRACT

Latencies (RT) and eye movement measures were used to examine the effects of age and contrast on the distractor-ratio effect (DRE) in visual search. Younger and older adults performed a contrast × orientation conjunction search task where the ratios of white to black distractors and luminance contrast levels were varied. The distractor-ratio manipulation had similar effects for older and younger adults on both RT and the number of fixations required to find the target. Both measures were largely independent of distractor ratio on target-present trials, while both RTs and the fixation number increased with the number of items sharing the target's contrast polarity on target-absent trials. A more detailed analysis of eye movements suggested that younger adults were a bit more adept at attending to the smaller set of distractors, which presumably facilitated both overt and covert search. Generalized slowing can account for the age differences in RT, but the fixation number data speak to another mechanism, perhaps increased cautiousness on the part of the elderly when signal strength is low.